Year	Index (Units)
1980	0.834
1981	0.974
1982	1.035
1983	1.184
1984	1.493
1985	1.874
1986	2.469
1987	3.223
1988	4.031
1989	5.301
1990	7.185
1991	10.655
1992	12.156
1993	13.641
1994	15.357
1995	17.057
1996	19.006
1997	19.654
1998	22.849
1999	25.290
2000	28.998
2001	33.039
2002	38.970
2003	44.872
2004	50.182
2005	56.682
2006	61.702
2007	69.498
2008	77.994
2009	80.839
2010	84.603
2011	88.914
2012	93.180
2013	97.222
2014	100.000
2015	101.604
2016	105.805
2017	108.090
2018	110.208
2019	113.583
2020	116.086
2021	125.893
2022	136.033
2023	142.125
2024	147.191
2025	152.437
2026	158.329
2027	164.447
2028	170.805
2029	177.405